A Monograph of the Formic id ae of South Africa. 55 



shining, clothed with a long adpressed pale pubescence, closer on 

 the head and legs, very dense on the antennae and scantier on the 

 thorax and abdomen ; abdomen sparsely pilose with semi-erect long 

 pale hairs, the rest of the body with a very scanty blackish pilosity. 

 Head wider than long, excluding the clypeus nearly twice as wide as 

 long. Clypeus raised roof-shaped towards the middle line, anterior 

 margin straight and depressed ; seen directly from above, the 

 clypeus projects considerably in front of the line of the mouth. 

 Frontal carinae flat and nearly obsolete. Mandibles atrophied to 

 two triangular flaps at the sides of the mouth. Byes large, not very 

 prominent, their internal margins moderately concave. Ocelli large, 

 on a slightly raised area. Antennae long and filiform, reaching 

 back as far as the base of the 2nd abdominal segment ; scape shorter 

 than the distance separating the two posterior ocelli, 1st joint of 

 flagellum a little shorter than the scape, 2nd joint three times as 

 long as the 1st, last joint nearly as long as the two preceding 

 together. 



Pronotum exposed, not quite so wide as the head. Mesonotum 

 a little longer than wide, with the parapsidal sutures and anterior 

 Mayrian furrows sharply defined. Scutellum moderately gibbous, 

 less than one-third the length of the mesonotum, from which it is 

 separated by a deep crenate suture. Dorsum of epinotum wider 

 than long, sloping gradually into the declivity. Node of petiole 

 like that of the £ , but narrower and more parallel-sided. First 

 segment of abdomen convex in front and at the sides, 2nd segment 

 a little longer than the 1st, and wider than long. Pygidium pro- 

 duced into a long spine. Wings hyaline, nervures and stigma pale 

 yellow. 



Bulawayo, under stones, in small colonies of less than a dozen 

 individuals. (S.A.M., P.M., G.A. colls.) 



Sub-Genus BOTHPOPONEPA, Mayr. 



Verh. Zool. Bot. Ges. Wien, vol. 12, p. 717, 1862. 



Key to the % $ of Pachycondyla. (Sub-Genus Bothroponera, Mayr.) 



(10). 1. Head, thorax, and basal segments of abdomen coarsely punctured. 



(5). 2. Mandibles striated. 



(4). 3. Node of petiole widely emarginate posteriorly .. .. cariosa, Emery. 



(3). 4. Node of petiole sharply truncate posteriorly . . . . cavernosa, Roger. 



(2). 5. Mandibles not striated. 



(7). (5. Node of petiole widely emarginate posteriorly, a golden pubescence on the 



whole body granosa, Roger. 



